I hadn't heard about Mark falling ill but I haven't talked to him since late last fall. I know he's had a bunch of stress in his life the last few years I hope he's doing well.
I don't know how things turned out for the OP but I've had mark do more work for me since this thread posted, including fitting a titanium .38spl cylinder to my 360J so that it's a convertible now. I'm still happy with it and still carrying it several days a week.
